"I went to the hospital and they said I couldn't do any competitions until it healed, and I was like, 'Too bad. This is my job,' " said Bobek, 17.
Bobek has had a strange year. She finished third at the nationals, a placing somewhat overshadowed by the attack on Nancy Kerrigan.
Since then, she has struggled through several nagging injuries, placed, 13th at the world championships, and then had identical seventh-place finishes at the Goodwill Games and Skate America.
Russian Olga Markova leads the women's competition after the short program, followed by Surya Bonaly of France, Bobek, Michelle Kwan - who fell on her first jump of the night - and Caryn Kadavy.
In the pairs competition, Russians Evegnia Shishkova and Vadim Naumov are first after the short program.
Jenni Meno and Todd Sand, U.S. national champions, are in second place going into tonight's final, and Kyoko Ina and Jason Dunghen are third. Elena Beloussovskaya and Sergei Potalov of Ukraine are in fourth.
The ice dancing competition was reduced to three couples when Elizabeth Punsalan and Jerod Swallow of the U.S. withdrew because Punsalan has a stomach virus.
Leading that competition is Anjelika Krylova and Oleg Ovsiannikova of Russia.